Toubou
also: Tubu, Tebu, Tibbu, Teda, Daza, Gorane
The Saharan Nilo-Saharan cluster of the central Sahara: Teda in the Tibesti and southern Libya, Daza further south in Borkou and Kanem. Sister branch to Kanuri within Saharan; commonly treated as a single Toubou cluster of two closely related varieties, with around half a million speakers across northern Chad, north-eastern Niger, and south-eastern Libya.